Tire-inflating apparatus.



O. EBERT.

TIRE INFLATING APPARATUS.

APPLICATION FILBDSEPT. 23, 1912.-

1,083,440. Patented Jan. 6, 1914.

COLUMBIA PLANDGRAPH c0.. WASHINGTON D c OTTO EBERT, OF IRONTON, OHIO.

TIRE-INFLATING APPARATUS.

Specification of Letters Patent.

Patented Jan. 6, 1914.

Application filed September 23, 1912. Serial No. 721,832.

To all whom it may concern Be it known that I, OTTO EBERT, a citizen ofthe United States, residing at Ironton, in the county of Lawrence andState of Ohio, have invented certain new and useful Improvements inTire-Inflating Apparatus, of which the following is a specification.

My invention relates to improvements in tire inflating apparatus, andhas for its leading object the provision of means for inflating the tireand retaining the air without affording an opportunity for it to escapewhile the cap is being screwed on.

Another object of the invention is to provide an attachment forinflating the tire without permitting an escape of the air which will beof the simplest, cheapest, and most durable construction to provide adesirable and practical article of this class.

A further object of the invention is to provide an attachment of thisnature which will be applicable to pneumatic tires of any size and make;which attachment can be readily engaged and disengaged on the valve stemof the tire; which can be easily and readily transported from place toplace and will occupy a minimum amount of space; and which willefliciently and reliably prevent the escape of the air from the tireduring the inflating operation.

To attain the desired objects, the invention broadly stated consists ofthe combination with the valve stem of a pneumatic tire, of a membercarrying a valve seated on said stem, and means for raising and loweringsaid member to seat and unseat the valve to permit the inflating of thetire.

The invention further consists in certain novel features of constructionand arrangements of parts, substantially as disclosed herein.

In order that the detailed construction of my attachment may be readilyseen and its many advantages be fully appreciated, I have illustrated inthe accompanying drawing an inflating attachment constructed inaccordance with and embodying the principles of my invention, it beingunderstood that I do not limit myself to the precise details ofconstruction, but reserve the right to resort to such changes andmodifications as fall within the spirit and scope of the invention, asdefined in the appended claim.

Figure 1 is a side elevation of the attachment in position upon thevalve stem of a pneumatic tire.

Fig. 2 is a vertical central sectional view thereof, and Fig. 3 is asectional view of the apparatus with the connecting sleeve removed toillustrate details of construction.

In the drawings :The numeral 1 designates a sleeve, onto which isthreaded a closure cap 2, preferably made air-tight by means of suitablepacking 3. The sleeve is formed with a nipple 4, threaded to receive theconnection from a pump or other suitable inflating means. Passingthrough cap 2 and rotatable in sleeve 1 is a key 5, formed with a head6, and having a connection 7 to prevent it from pulling out through thepacking of the closure cap when rotated. Said key is connected to thevalve cap 8 at one end, which cap is threaded onto the external threadsof a stem 9, formed with an axial bore 10 and ground to fit snugly inthe valve stem casing 11, which is threaded externally to engage thecorresponding internal threads of the connecting sleeve 12, which bindstubular stem 9 in casing 11, and is connected to sleeve 1 by the union13. Stem 9 has a valve 15 seated on valve seat 14 of the valve stem 16of the tire, which is contained within casing 11, and is seated by aspiral spring 17 fastened to a suitable footpiece 18. Gaskets 19areprovided where necessary to render all parts air-tight, and cap 8 hasair holes 20 formed therein to allow the air from the pump to passtherethrough.

In operation, when it is desired to inflate the tire, the pumpconnection is made onto nipple 4, the other part-s being in position,and the key 5 is turned to rotate the cap 8 to depress stem 16 andunseat the valve 15, thus permitting the air under pressure to enter thetubular bore of stem 9 through said air holes 20 and pass by valve 15into the tire. When the tire has been inflated to the desired extent,the key 5 is rotatedto its normal position and the pump connection isdetached, the spring 17 urging the stem 16 upwardly until valve 15 isagain seated on valve seat 14,. the air pressure within the tireassisting the spring 16 to hold the valve in closed position.

From the foregoing description, taken in connection with theaccompanying drawings, the construction and operation of my improvementswill be readily seen and appreciated, and it will be apparent to allthat the attachment may be easily applied and removed; occupies butlittle space; and is of the simplest and cheapest construction tocommend its use to those desiring a practical and efficient article ofthis nature.

I claim A tire inflating device comprising a tubula-r member having areduced upper end, said. tubular member having; a conical lower endfitted within a tire valve casing, a 010' sure rotatably engaged on thereduced end of said tubular member and provided with air-inlet openings,a sleeve carrying an inlet and surrounding said reduced end, avalve stemmovable within the body of said tubular member and finding hearing atone end against said closure, a valve on said stem normally seatingagainst the corneal end of said tubular member and effectively closingthe bore thereof, and a closure ao- OTTO EBER-T.

Witnesses A. C. RoBIsoN, ELIZABETH SCHRADER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of ZPatents,

Washington, D. C.

